in programming what are object attributes properties variables constants

Class     - Blueprint for creating an Object
Object    - An instance of a class
Field, Attribute, and Property 
          - All used interchangeably but are the same
	      - They are data stored as part of an object sometimes called variables
Variable  - refers only to a location in memory
Parameter - placeholder in a function for a future argument
Argument  - data or variable passed into a function
Constant  - a location in memory whose data or value doesn't change